Hitachi VSP N400

A modular, rack-mountable, all-flash array that offers high performance, high reliability, and flash-accelerated scalability are the Hitachi Virtual Storage Platform N400. The storage system has two controllers, each of which has a processor, two DIMMs for in-line cache memory, a CFM for cache flash memory, a battery, fans, and I/O modules for iSCSI and Fibre Channel. For out-of-band management, each controller also has an Ethernet connection. All data discs remain accessible to data hosts utilising redundant data through the other controller if the data path through one controller fails. Network-attached storage (NAS) modules built within the storage system are available. The NAS modules offer block access using iSCSI protocols and file access using CIFS and NFS protocols. All types of storage systems allow for replacing bad drives without affecting hosts' access to their data. The fault-tolerant integrity of the logical drives can be protected by configuring a spare hot drive to replace a failing drive automatically. Hardly-based and self-contained, RAID logical drives offer the best performance in small external enclosures.